UNUSED AND OBSOLETE LOG RULES 87 



A Comparison of the Maine and Blodgett Log Rules, Ii-ving G. Stetson, Forestry 



Quarterly, Vol. VIII, 1910, p. 427. 

 Woodsman's Handbook, Henry S. Graves and E. A. Ziegler (Scribner Decimal C, 



Doyle, Inscribed Square Log Rules, and Table of Comparisons of 44 log rules 



for 16-foot logs), Bui. 36, U. S. Dept. Agr. Forest Service, 1910. 

 Comparative Study of Log Rules (Champlain, Vermont and Doyle Rules), Austin 



F. Hawes, Bull. 161, Vermont Agr. Exp. Sta., Part II, 1912. 



Log Rules Based on Mill Tallies 



Log Rules for Second-growth Hardwood from Mill TalUes. j-inch Saw Kerf, 



Round-edged Boards cut \\ inches thick. Based on Small End, Inside Bark, 



and on Middle Diameter Outside Bark, C. A. Lyford, Reports of Forestry 



Commission, N. H., 1905 and 1907. 

 Log Rule for White Pine, from Mill Tallies, j-inch Saw Kerf, for 60 per cent Roimd- 



edged, 40 per cent Square-edged Boards, 70 per cent 1-inch Lumber, remainder 



2g-inch Plank, C. A. Lyford, Reports of Forestry Commission, New Hampshire, 



1905 and 1907. 

 Log Rules for 12-ft. logs from Mill Talhes of Round and Square Edge Lumber, 



separately for White Pine, and Hardwoods, L. Margolin, Proc. Soc. Am. 



Foresters, Vol. IV, 1909, p. 182. 

 Comparison of Round-edged and Square-edged Sawing for 2|-inch planks, H. O. 



Cook, Forest Mensuration of White Pme in Mass., 1908, pp. 38-43. 

 Contrast of Output by Different IMethods of Sawing, H. D. Tiemann, Proc. Soc. 



Am. Foresters, Vol. IV, 1909, p. 173. 

 Log Rule for Hickories, in Cubic Feet, Bui. 80, Forest Service, 1910, p. 39. 

 Log Rule for Hardwood Logs from Mill Tally, Yellow Birch, Maple, Beech, I. W. 



Bailey and P. C. Heald, Forestry Quarterly, Vol. XII, 1914, p. 17. 

 Log Rule for Loblolly Pine, based on Mill Tallies, Logs with less than 2-inch Crook, 



i-inch Kerf. W. W. Ashe, Table 23a. Bui. 24, North CaroUna Geological 



Survey, 1915, p. 76. 



